[people/arne_f/kernel.git] / arch / sparc / include / asm / ebus_dma.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __ASM_SPARC_EBUS_DMA_H
#define __ASM_SPARC_EBUS_DMA_H

struct ebus_dma_info {
	spinlock_t	lock;
	void __iomem	*regs;

	unsigned int	flags;
#define EBUS_DMA_FLAG_USE_EBDMA_HANDLER		0x00000001
#define EBUS_DMA_FLAG_TCI_DISABLE		0x00000002

	/* These are only valid is EBUS_DMA_FLAG_USE_EBDMA_HANDLER is
	 * set.
	 */
	void (*callback)(struct ebus_dma_info *p, int event, void *cookie);
	void *client_cookie;
	unsigned int	irq;
#define EBUS_DMA_EVENT_ERROR	1
#define EBUS_DMA_EVENT_DMA	2
#define EBUS_DMA_EVENT_DEVICE	4

	unsigned char	name[64];
};

int ebus_dma_register(struct ebus_dma_info *p);
int ebus_dma_irq_enable(struct ebus_dma_info *p, int on);
void ebus_dma_unregister(struct ebus_dma_info *p);
int ebus_dma_request(struct ebus_dma_info *p, dma_addr_t bus_addr,
			    size_t len);
void ebus_dma_prepare(struct ebus_dma_info *p, int write);
unsigned int ebus_dma_residue(struct ebus_dma_info *p);
unsigned int ebus_dma_addr(struct ebus_dma_info *p);
void ebus_dma_enable(struct ebus_dma_info *p, int on);

#endif /* __ASM_SPARC_EBUS_DMA_H */
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
aae7fb87 DM	2	#ifndef __ASM_SPARC_EBUS_DMA_H
	3	#define __ASM_SPARC_EBUS_DMA_H
	4
	5	struct ebus_dma_info {
	6	spinlock_t lock;
	7	void __iomem *regs;
	8
	9	unsigned int flags;
	10	#define EBUS_DMA_FLAG_USE_EBDMA_HANDLER 0x00000001
	11	#define EBUS_DMA_FLAG_TCI_DISABLE 0x00000002
	12
	13	/* These are only valid is EBUS_DMA_FLAG_USE_EBDMA_HANDLER is
	14	* set.
	15	*/
	16	void (callback)(struct ebus_dma_info p, int event, void *cookie);
	17	void *client_cookie;
	18	unsigned int irq;
	19	#define EBUS_DMA_EVENT_ERROR 1
	20	#define EBUS_DMA_EVENT_DMA 2
	21	#define EBUS_DMA_EVENT_DEVICE 4
	22
	23	unsigned char name[64];
	24	};
	25
f05a6865 SR	26	int ebus_dma_register(struct ebus_dma_info *p);
	27	int ebus_dma_irq_enable(struct ebus_dma_info *p, int on);
	28	void ebus_dma_unregister(struct ebus_dma_info *p);
	29	int ebus_dma_request(struct ebus_dma_info *p, dma_addr_t bus_addr,
aae7fb87	30	size_t len);
f05a6865 SR	31	void ebus_dma_prepare(struct ebus_dma_info *p, int write);
	32	unsigned int ebus_dma_residue(struct ebus_dma_info *p);
	33	unsigned int ebus_dma_addr(struct ebus_dma_info *p);
	34	void ebus_dma_enable(struct ebus_dma_info *p, int on);
aae7fb87 DM	35
aae7fb87 DM	36	#endif /* __ASM_SPARC_EBUS_DMA_H */